Shoe upper



FIG. 1 is a front perspective view of a shoe upper showing my new design;

FIG. 2 is a rear perspective view thereof; and,

FIG. 3 is a side view thereof.

The broken lines inside the shaded area represent unclaimed stripes. The broken lines showing the remainder of the shoe are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 